Atmospheric river season is ramping up as the flow of moisture from the central Pacific finds its way back to the west coast. Western Oregon and southwest Washington has already seen its first ...

Bomb cyclones can occur when a cold air mass collides with a warm air mass, which is how some significant winter storms can happen. When an atmospheric river and bomb cyclone occur at the same ...

Strong ARs transport water vapor roughly equivalent to 7.5 to 15 times the average flow of the Mississippi River. Annually, ...

The Western Pacific Subtropical High (WPSH) functions like Earth's atmospheric traffic controller, directing summer monsoon ...

Atmospheric river the cause. Atmospheric rivers, sometimes known as a “Pineapple Express” because the long and narrow bands of water vapor convey warm subtropical moisture across the Pacific ...

The Pacific Northwest braces for a second atmospheric river in less than a few days this weekend. Rain arrives early Saturday morning and is expected to last through Sunday.

Atmospheric river possible in the Pacific Northwest next week. Here’s what you need to know by: Josh Cozart. Posted: Oct 17, 2024 / 10:30 AM PDT. Updated: Oct 17, 2024 / 12:40 PM PDT.

Atmospheric river slams Pacific Northwest, triggering deadly flooding. The storm caused record river crests in Washington state, flooding homes and stranding hundreds; two people died in Oregon.

"Atmospheric river will produce one last round of heavy rain/mountain snow and strong wind gusts across the Pacific Northwest today," the National Weather Service (NWS) said in a Short Range ...

An atmospheric river hit the Pacific Northwest over the weekend, with a second round of heavy rain and snow arriving earlier this week. Poor weather conditions are expected across three states in ...

While river flooding was expected to linger in western Washington on Wednesday, the rivers were receding and no rivers in the region remained in major flood stage, the weather service said. Flood w… ...

In most regions, if the atmospheric pressure drops at least 24 millibars within 24 hours, it is considered a bomb cyclone. Bomb cyclones can occur when a cold air mass collides with a warm air ...